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nlexa [21]
3 years ago
10

43) In a hydrogen bond between a water molecule and another biomolecule: A). a hydrogen ion on the water molecule forms an ionic

bond with a hydride ion on the other molecule. B). the partial charge on a hydrogen of the water interacts with the partial charge on a hydrogen of the other molecule. C). the hydrogen bond will typically form between a hydrogen atom and either a nitrogen, sulfur, or oxygen atom. D). a hydrogen on the water molecule forms a covalent bond to a hydrogen atom on the other molecule. E). the hydrogen atom is located between an oxygen atom of the water and a carbon atom of the other molecule.
Chemistry
1 answer:
Tpy6a [65]3 years ago
5 0

Answer: The hydrogen bond will typically form between a hydrogen atom and either a nitrogen, sulfur, or  oxygen atom.

I hope that this helps you !

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What is plasma and how /why does it form
Hunter-Best [27]

Answer:

I can answer 1 part Plasma is the fluid part of blood at least in bio(srry if it doesnt work)

Explanation:

7 0
3 years ago
A a black metal measures 2 cm x 3 cm x 2.5 cm if it's much is 67.5 grams calculate its density​
liraira [26]

Answer:

d=4.5  g/cm³

Explanation:

v=l x w x h

v=2 x 3 x 2.5

v=15 cm³

d=m/v

d=67.5/15

d=4.5  g/cm³

3 0
3 years ago
(10 points) A student gathers the following data for the freezing point depression of a pure solvent and solvent-solute solution
Alex17521 [72]

Answer:

548 g/mol

Explanation:

The freezing point depression of a solvent occurs when a nonvolatile solute is added to it. Because of the interactions between solute-solvent, it is more difficult to break the bonds, so the phase change will need more energy, and the freezing point will drop, which is called cryoscopy.

The drop in temperature can be calculated by:

ΔT = Kf*W*i

Where Kf is the cryoscopy constant of the solvent, W is the molality, and i is the van't Hoff factor, which indicates the fraction of the solute that dissolves.

The molality represents how much moles (n) of the solute is presented in each kg of the solvent (m2), thus

W = n/m2

The number of moles is the mass of the solute (m1) in g, divided by the molar mass (M1) of it:

W = m1/(M1*m2)

So, by the data:

0.2214 = 0.632/(M1*0.00521)

0.00115M1 = 0.632

M1 = 548 g/mol

6 0
3 years ago
Read 2 more answers
At 600. K how many moles of gas are in a 1.00 L cylinder at atmospheric pressure?
Anton [14]

Answer:

0.02moles

Explanation:

To answer this question, the general gas law equation is used. The General gas law is:

Pv = nRT

Where; P = standard atmospheric pressure (1 atm)

V = volume (L)

n = number of moles

R = Gas law constant

T = Temperature

For this question; volume = 1.00L, atmospheric pressure (P) = 1 atm, R = 0.0821 L-atm / mol K, T = 600K, n = ?

Therefore; Pv = nRT

n = PV/RT

n = 1 × 1/ 0.0821 × 600

n = 1/49.26

n = 0.0203moles

Hence, there are 0.02 moles of gas.

8 0
3 years ago
If the wavelength of yellow light is 800 nm, what is the frequency of yellow light in Hertz?
kiruha [24]

Answer:

3.75 * 10^14

Explanation:

(3.0 * 10^17) / 800nm = 3.75 * 10^14hz ( have to have 17 and not 8 because its in nanometers)

8 0
3 years ago
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